Velocity Measurement of Pneumatically Conveyed Particles Using Intrusive Electrostatic Sensors

Shao, Jiaqing; Krabicka, Jan; Yan, Yong

doi:10.1109/tim.2010.2040960

Cited by 62 publications

(12 citation statements)

References 13 publications

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“…Therefore, by changing positions of the point charge, the space sensitivity distribution can be worked out through a finite-element model analysis [5].…”

Section: Basic Principlementioning

confidence: 99%

Research on Plug-in Electrostatic Sensor Applied in Gas-Solid Two-Phrase Flow Measurement

Liu¹

2013

Proceedings of the 2nd International Conference on Computer Science and Electronics Engineering (ICCSEE 2013)

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Abstract-A plug-in electrostatic sensor simulative model was built through COMSOL Multiphysics simulation software. The sensitivity distribution on the center section of a plug-in electrostatic sensor was simulated and investigated. Through comparing different sensitivity distribution under the conditions of different electrode insert depths and of different electrode diameters, the influences of these factors on the sensitivity of electrostatic sensor were analyzed and discussed.

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“…Therefore, by changing positions of the point charge, the space sensitivity distribution can be worked out through a finite-element model analysis [5].…”

Section: Basic Principlementioning

confidence: 99%

Research on Plug-in Electrostatic Sensor Applied in Gas-Solid Two-Phrase Flow Measurement

Liu¹

2013

Proceedings of the 2nd International Conference on Computer Science and Electronics Engineering (ICCSEE 2013)

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“…Therefore, rod electrodes are widely used in industrial areas and some research work has been performed. Shao compared the advantages and disadvantages of the ring electrode and rod electrode electrostatic sensors in measuring the pulverized coal speed [31,32], and proved that both types of electrodes achieved the same measurement accuracy in the coal dust measurement. Electrostatic induction is a basic physical phenomenon in which the opposite induced charge is induced on the conductor if the point charge is close to the conductor.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Induced Charge Mechanism on a Rod Electrode

Cheng

et al. 2019

Electronics

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Rod electrodes based on an electrostatic induction mechanism are widely used in various industrial applications, but the analytic solution of an induced charge mechanism on a metal rod electrode has not yet been systematically established. In this paper, the theoretical model of the induced charge on a rod electrode is obtained through the method of images. Then, the properties of the rod electrode under the action of the point charge are studied, including the induced charge density distribution on the rod electrode, the amount of the induced charge with different diameters and lengths of the electrode, and the effective space region induced by the electrode. On this basis, a theoretical model of the induced current on a rod electrode is established, which is used to study the induced current properties by a moving point charge. It is found that both the magnitude and bandwidth of the induced current increase with the increased point charge velocity. Finally, three experimental studies are conducted, and the experimental results show good consistency with the analysis of the theoretical model, verifying the correctness, and accuracy of the model. In addition, the induced charge mechanism studied in this paper can act as an effective basis for the rod electrode sensor design in terms of the optimal radius and length.

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“…Each method has certain advantages over a specific range, but also possesses notable drawbacks. Among these numerous measurement methods, the most commercially promising techniques include ultrasonic [2,3], optical [4,5], electrostatic [6,7], and capacitance [8] approaches, among others. The ultrasonic method is susceptible to temperature and is regarded as difficult to install.…”

Section: Introductionmentioning

confidence: 99%

Detection of Pneumatic Conveying by Acoustic Emissions

Liu

et al. 2019

Applied Sciences

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The acoustic emission (AE) method is used in certain industries for the measurement of pneumatic conveying. Instead of the non-intrusive sensors, the comparison of two different intrusive probes in pneumatic conveying is presented in this work, and the AE signals generated by the flow for different particle flow rates and particle sizes were studied. Comparing the distribution of root mean square (RMS) values indicates that the AE signal acquired by a wire mesh probe was more reliable than that from a T-type probe. Limited intrinsic mode functions (IMFs) were extracted from the raw signals by the ensemble empirical mode decomposition (EEMD) algorithm. The characteristics of these signals were analyzed in both the time and frequency domains, and the energies of different IMFs were used to predict the particle mass flow rates, demonstrating a relative error under 10% achieved by the proposed monitoring system. Additionally, the mean squared error contribution fraction, instead of the energy fraction, can predict the particle size.

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Velocity Measurement of Pneumatically Conveyed Particles Using Intrusive Electrostatic Sensors

Cited by 62 publications

References 13 publications

Research on Plug-in Electrostatic Sensor Applied in Gas-Solid Two-Phrase Flow Measurement

Research on Plug-in Electrostatic Sensor Applied in Gas-Solid Two-Phrase Flow Measurement

Investigation of Induced Charge Mechanism on a Rod Electrode

Detection of Pneumatic Conveying by Acoustic Emissions

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